Fix #263: Add quotes to yasm.rules switches.
diff --git a/Mkfiles/vc9/yasm.rules b/Mkfiles/vc9/yasm.rules
index ee1fefb..2514ae0 100644
--- a/Mkfiles/vc9/yasm.rules
+++ b/Mkfiles/vc9/yasm.rules
@@ -19,7 +19,7 @@
 					DisplayName="Definitions"

 					Category="Pre-Defined Symbols"

 					Description="Specify pre-defined symbols ('symbol' or 'symbol = value') "

-					Switch="-D [value]"

+					Switch="-D "[value]""

 					Delimited="true"

 					Inheritable="true"

 				/>

@@ -28,7 +28,7 @@
 					DisplayName="Include Paths"

 					Category="Configuration"

 					Description="Set the paths for any additional include files"

-					Switch="-I [value]"

+					Switch="-I "[value]""

 					Delimited="true"

 					Inheritable="true"

 				/>

@@ -37,7 +37,7 @@
 					DisplayName="Remove Definitions"

 					Category="Pre-Defined Symbols"

 					Description="Remove pre-defined symbols "

-					Switch="-U [value]"

+					Switch="-U "[value]""

 					Delimited="true"

 					Inheritable="true"

 				/>

@@ -46,7 +46,7 @@
 					DisplayName="Object File Name"

 					Category="Output"

 					Description="Select the output file name"

-					Switch="-o [value]"

+					Switch="-o "[value]""

 					DefaultValue="$(IntDir)\$(InputName).obj"

 				/>

         <StringProperty

@@ -54,14 +54,14 @@
 					DisplayName="List File Name"

 					Category="Output"

 					Description="Select an output listing by setting its file name"

-					Switch="-l [value]"

+					Switch="-l &quot;[value]&quot;"

 				/>

         <StringProperty

 					Name="PreIncludeFile"

 					DisplayName="Pre Include File"

 					Category="Configuration"

 					Description="Select a pre-included file by setting its name"

-					Switch="-P [value]"

+					Switch="-P &quot;[value]&quot;"

 				/>

         <BooleanProperty

 					Name="Debug"